A severe weather warning has been issued for Bristol as the Met Office warns of heavy, thundery showers and flooding on the roads.

The West Country-based forecaster is warning localised surface water flooding on roads may make journey times longer.

The yellow weather warning covers from now until 6am on Sunday.

The Met Office's chief forecaster said: "Although not all areas will see the heavy downpours, some spots are likely to have around 15 mm of rain in less than an hour and up to 30 mm in two or three hours.